National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fog/Mist

47°F

8°C

Humidity 97%
Wind Speed SW 3 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Last update 26 Nov 12:53 am EST
Extended Forecast for

Sunbury PA

  • Overnight

    Overnight: Cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 62. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. West wind 8 to 10 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly cloudy, with a high near 40. West wind 9 to 14 mph, with gusts as high as 32 mph.

    High: 40 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. West wind around 10 mph, with gusts as high as 31 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 46. Calm wind.
Wednesday
A slight chance of showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 62. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 33. West wind 8 to 10 mph, with gusts as high as 30 mph.
Thanksgiving Day
Mostly cloudy, with a high near 40. West wind 9 to 14 mph, with gusts as high as 32 mph.
Thursday Night
Partly cloudy, with a low around 29. West wind around 10 mph, with gusts as high as 31 mph.
Friday
Partly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of showers after 1pm. Cloudy, with a high near 44. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Cloudy, with a low around 32. Chance of precipitation is 50%.
Monday
A chance of showers. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Tuesday
A chance of rain and snow showers. Mostly cloudy, with a high near 38. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunbury PA
 40.87°N 76.79°W (Elev. 482 ft)
Last Update:
1:05 am EST Nov 26, 2025
Forecast Valid:
1am EST Nov 26, 2025-6pm EST Dec 2, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation